Atomic Theory
This ancient Greek philosopher first suggested the idea of tiny, indivisible particles called "atomos."
Who is Democritus?
This type of electromagnetic wave has the longest wavelength and is used for radio broadcasts.
What are radio waves?
This term describes the process by which an unstable nucleus loses energy by emitting radiation.
What is radioactive decay?
What is Planck's Constant?
This is an educated guess or proposed explanation that can be tested.
What is a hypothesis?
What are the names and charges of the 3 subatomic particles of an atom?
What are the proton (positive), neutron (neutral), and the electron (negative)?
This color of visible light has the shortest wavelength and highest frequency?
What is violet light?
This particle, made of 2 protons and 2 neutrons, is emitted during alpha decay.
What is an alpha particle?
What is a photon?
This law states that energy cannot be created or destroyed, only transformed.
What is the Law of Conservation of Energy?
This scientist developed the first atomic theory based on experimental evidence in the early 1800's
Who is John Dalton?
This type of electromagnetic radiation is used in medical X-ray imaging.
What are X-rays?
This term describes the time it takes for half of the radioactive sample to decay
What is a half-life?
What is the wavelength of light (nm) that has a frequency of 3.22 x 1014 s-1?
932
This process involves the splitting of a nucleus into smaller nuclei releasing energy.
What is nuclear fission?
He proposed the nuclear model of the atom after his gold foil experiment.
Who is Ernest Rutherford?
These waves have shorter wavelengths than visible light and can cause sunburn.
What are ultraviolet rays?
During alpha decay, the atomic number of the element changes by this amount.
The energy of a photon that has a frequency of 8.21 x 1015 s-1
These creations help us to understand complex concepts by simplifying or visualizing them
What are models?
This physicist developed a model where electrons orbit the nucleus in fixed energy levels.
Who is Niels Bohr?
What is the Heisenberg Uncertainty Principle?
This process involves a neutron being absorbed by a nucleus, causing it to become unstable and split.
What is nuclear fission?
What is the frequency(v) of the light from a laser that emits light of wavelength (λ) 8.40 x 10-7 m?
3.57 x 1014 Hz
This is the phrase for this acronym: BFND
What is Bobcat Fight Never Dies?